Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/90-18 | 295/90-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.4 (772.2) | 40.91 (1039) | 10.5 (266.8) 34.6% |
| Width inches (mm) | 6.89 (175) | 11.61 (295) | 4.72 (120) 68.6% |
| Circum. inches (mm) | 95.51 (2425.94) | 128.51 (3264.11) | 33 (838.18) 34.6% |
| Sidewall Height inches (mm) | 6.2 (157.5) | 10.45 (265.5) | 4.25 (108) 68.6% |
| Revolutions per mile (km) | 663.39 (412.21) | 493.04 (306.36) | -170.35 (-105.85) -25.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 26.91 mph (43.31 km/h) |
| 25 mph (40.23 km/h) | 33.64 mph (54.13 km/h) |
| 30 mph (48.28 km/h) | 40.37 mph (64.96 km/h) |
| 35 mph (56.33 km/h) | 47.09 mph (75.79 km/h) |
| 40 mph (64.37 km/h) | 53.82 mph (86.62 km/h) |
| 45 mph (72.42 km/h) | 60.55 mph (97.44 km/h) |
| 50 mph (80.47 km/h) | 67.28 mph (108.27 km/h) |
| 55 mph (88.51 km/h) | 74 mph (119.1 km/h) |
| 60 mph (96.56 km/h) | 80.73 mph (129.92 km/h) |
| 65 mph (104.61 km/h) | 87.46 mph (140.75 km/h) |
| 70 mph (112.65 km/h) | 94.19 mph (151.58 km/h) |
| 75 mph (120.7 km/h) | 100.91 mph (162.4 km/h) |
| 80 mph (128.75 km/h) | 107.64 mph (173.23 km/h) |
| 85 mph (136.79 km/h) | 114.37 mph (184.06 km/h) |
| 90 mph (144.84 km/h) | 121.1 mph (194.88 km/h) |
| 95 mph (152.89 km/h) | 127.82 mph (205.71 km/h) |
| 100 mph (160.93 km/h) | 134.55 mph (216.54 km/h) |
| 2.35 | 2.73 | 2.94 | 3.07 | 3.21 | 3.31 | 3.42 | 3.55 | 3.73 | 3.91 | 4.11 | 4.27 | 4.56 | 4.88 | 5.13 | 5.29 | 5.38 | 5.71 | 6.17 | 7.17 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1255 | 1458 | 1570 | 1639 | 1714 | 1767 | 1826 | 1895 | 1991 | 2088 | 2194 | 2280 | 2435 | 2605 | 2739 | 2824 | 2872 | 3049 | 3294 | 3828 |
Better Fuel Economy Factory Ratios Increased Power
